All
All
Stories, updates, insights, and original analysis from The Planetary Society.
One month, one journal, so many missed space stories!
Or: Emily reads you the table of contents of Icarus.
Jupiter's faded belt: It's happened before, and it'll happen again
When I wrote a post about Jupiter's missing South Equatorial Belt in May, I had three main questions: how long did it take for the belt to go away, has this happened before, and how can a planet as big as Jupiter change its appearance so quickly?
Hayabusa's return: a review
Hayabusa's return: round up some of the amazing photos, movies, and artworks that were posted and shared and Tweeted and re-Tweeted over the previous dozen hours or so.
Titan's rivers are square
There's a new
Big hunks of carbonate rock on Mars at last
Carbonate rocks should be all over Mars. But it's been hard to find carbonates—surprisingly so.
The goal of Opportunity's trek
Opportunity's kilometers-long march across the sands of Meridiani Planum is a great story, and the journey is fun to follow; but what could be worth such a long march?
Radar glories in Titan rivers
Wow, this is a cool paper. Here's the gist: the Cassini RADAR team has spotted some river channels on Titan that shine so brightly in radar images, there must be something special going on to explain that brightness.
Morphology and mineralogy on Mars
A recent entry by Bethany Ehlmann from the blog of the Planetary Geomorphology Working Group of the International Association of Geomorphologists demonstrates how you can combine the power of different types of data to tease out a rich story of the past history of one spot on Mars.
Saturn's hexagon recreated in the laboratory
A lot of readers have expressed interest in the origin of Saturn's north polar hexagon. The hexagon is a long-lived pattern in the clouds surrounding Saturn's north pole, which has been observed since the Voyagers passed by in 1980 and 1981.
APOLLO program pinpoints location of Lunokhod 1 retroreflector
With the recent Lunar Reconnaissance Orbiter imaging of the Lunokhod 1 rover, scientists on the APOLLO project were finally able to do something that scientists have been dreaming of for more than three decades: shoot the rover with a laser.
Water on the Moon: Direct evidence from Chandrayaan-1's Moon Impact Probe
I've reported before about the detection of water on the surface of the Moon by the Chandrayaan-1 orbiter and the Deep Impact and Cassini spacecraft, but what I'm about to tell you about is actually more exciting: the direct detection of water in the lunar atmosphere by the Chandrayaan-1 Moon Impact Probe.
Hayabusa update: Last modifications to Earth return trajectory
An update on Hayabusa posted to the JAXA website by project manager Junichiro Kawaguchi.
Titan: Callisto with weather
It's the second time I've posted with this provocative title. This time, it's in response to a new paper published last week in Science.
2010 AL30: Watch out for low-flying asteroids
In less than 24 hours, a newly discovered asteroid known as 2010 AL30 will be zipping past Earth at an altitude of approximately a third the Earth-Moon distance. There's no chance it'll hit us, but it's generating a lot of excitement in the community of amateur and professional near-Earth asteroid observers.
Kepler discovers its first five exoplanets
Congratulations to NASA's Kepler mission team on their announcement of the discovery of its first five exoplanets (planets around other stars).
Hayabusa on the home stretch
Hayabusa is still 100 million kilometers from the Earth, less than an astronomical unit away but still with months to travel. But according to an update posted to their websitethis morning by project manager Junichiro Kawaguchi, Hayabusa is on the home stretch.
Einstein still rules
News from 7.2 billion light years away demonstrates that some things in this shifting universe are relatively reliable.
What "phase angle" means
As is probably obvious by now, I love playing with spacecraft image data. I am always looking for excuses to dive into space image archives to unearth images of stuff in space that haven't really been seen by very many people before.
That psychedelic M-cubed Moon movie explained
Advance warning: this entry may be a little technical for some.
The "Water on the Moon" Hoopla, Part 1: There's water on the Moon!
For a couple of weeks now, I've been hearing rumors about an upcoming announcement concerning Chandrayaan-1 Moon Mineralogy Mapper (